Vulnerabilities in pkg:maven/org.jenkins-ci.plugins/validating-string-parameter

PACKAGE
Advisory Identifier: GHSA-fvwh-wv43-8qj5
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Advisory Summary

CVE-2020-2257 is a HIGH (CVSS 8.0) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Validating string parameter libraries in the Maven ecosystem. The issue involves stored xss vulnerability in validating string parameter plugin. Remediation is available by upgrading affected packages to version 2.5.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.jenkins-ci.plugins/validating-string-parameter

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.jenkins-ci.plugins/validating-string-parameter. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-fvwh-wv43-8qj5 CVE-2020-2257 HIGH Stored XSS vulnerability in Validating String Parameter Plugin

CVE-2020-2257 at a Glance

CVE Identifier CVE-2020-2257
GHSA Identifier GHSA-fvwh-wv43-8qj5
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Validating string parameter
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2020-2257

To remediate this vulnerability, upgrade all affected Validating string parameter dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.jenkins-ci.plugins:validating-string-parameter fixed: 2.5 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>validating-string-parameter</artifactId>
    <version>2.5</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-2257, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

Analyze the terminal output to locate any version of Validating string parameter in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.5), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Validating string parameter, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Validating String Parameter Plugin 2.4 and earlier does not escape regular expressions in tooltips. Additionally, Validating String Parameter Plugin 2.4 does not escape parameter names and parameter descriptions. This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission. Validating String Parameter Plugin 2.5 escapes regular expressions in tooltips and parameter names. Parameter descriptions are rendered using the configured markup formatter.

CVE-2020-2257 Affected Validating string parameter Versions

1 component(s)
Fixed Versions:
2.5
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:validating-string-parameter
maven/org.jenkins-ci.plugins/validating-string-parameter
Maven
< 2.5
2.5

References

NVD — CVE-2020-2257 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2257
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/validating-string-parameter-plugin/commit/345a79d830a5fcd824a3c755506a438c78c48117
Validating string parameter Source Repository REPOSITORY
https://github.com/jenkinsci/validating-string-parameter-plugin
Validating string parameter Security Information SECURITY
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1935
Validating string parameter Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/09/16/3

Frequently Asked Questions

What is CVE-2020-2257?
CVE-2020-2257 is a security vulnerability in Validating string parameter involving Stored XSS vulnerability in Validating String Parameter Plugin under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Validating string parameter versions are affected?
Affected versions include releases prior to 2.5 across affected packages: org.jenkins-ci.plugins:validating-string-parameter.
What version fixes CVE-2020-2257?
Upgrading to 2.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is validating-string-parameter affected?
Yes, org.jenkins-ci.plugins:validating-string-parameter is affected in releases prior to 2.5. Upgrade your dependency to 2.5 or later.
What is the CVSS score of CVE-2020-2257?
CVE-2020-2257 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-2257?
CVE-2020-2257 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Maven dependencies for CVE-2020-2257?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.plugins'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fvwh-wv43-8qj5",
  "modified" : "2022-12-29T01:34:30Z",
  "published" : "2022-05-24T17:28:25Z",
  "aliases" : [ "CVE-2020-2257" ],
  "summary" : "Stored XSS vulnerability in Validating String Parameter Plugin",
  "details" : "Validating String Parameter Plugin 2.4 and earlier does not escape regular expressions in tooltips. Additionally, Validating String Parameter Plugin 2.4 does not escape parameter names and parameter descriptions.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.\n\nValidating String Parameter Plugin 2.5 escapes regular expressions in tooltips and parameter names. Parameter descriptions are rendered using the configured markup formatter.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:validating-string-parameter"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.5"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.4"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2257"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/validating-string-parameter-plugin/commit/345a79d830a5fcd824a3c755506a438c78c48117"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/validating-string-parameter-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1935"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/09/16/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-29T01:34:30Z",
    "nvd_published_at" : "2020-09-16T14:15:00Z"
  }
}